Metric vs. Customary

How many meters are there in a kilometer? In this BrainPOP movie, Tim and Moby explore the differences between the metric and customary systems of measurement. You’ll learn about the metric system’s simple base-10 design, and why that makes it so easy to use. Discover how the metric system’s structure lends itself to expression in decimals, and why the customary system generally uses fractions. You’ll also learn the secret of why the metric system’s inventors chose 10 as a base. (Hint: it’s a part of your body you use all the time!)